What exactly makes 31.8mm aluminum bars weaker than 25.4mm bars?

 cause they have the same ammount of metal but in a bigger circumference so its thiner. and all simply a bigger circumference makes them weaker. didn't you ever asked yourself, why bmx bars are not 31.8 ? cause they have rigid and MTB are made to have a shock so bars doesn'T need to be as stronger as 22.2 mm bars. simple as that , i hope i answered your question correctly man.

 I always assumed it was because it's a lot easier to shape aluminum with a bulge than steel, so when the 22.2mm grip standard emerged, it just made sense to make it straight through. But I can feel that. Actually thinking about it, I think 25.4mm bars would be less stiff so they'd absorb more stress. Cool. Good answer, works for me.

 you'll go to sleep smarter ;P

 Hum, Then tell me why they make some 1.5 headtube for the big freeride bikes (big diameter = less stress concentration) ... Crs-one you were right Alu is easy to hydroform and steel extremely hard to hydro form. And yes a cro-mo bar absorb more of the stress vibration etc... from a rigid fork, And it wont break like Alu bars. But I can assure you that your Alu bar will be as tuff as some cro-mo bar, the cro-mo bar will be smoother!! Sorry for my english guys!

 Thank you sire

 Something else is coming.

 of course

 It's fine, rides similar, only thing is that my forearms hurt more when landing, and you can't compress the front end to hop. Awkward at first, but I got used to it. Not too bad.

 Thats the problem I have with rigid forks. Not that its hard on a landing but that you cant compress it. Especially with a soft fork like a pike or rev. But yeah I think you get used to it. Looks very good tho!

 How's running a 1/8 chain on 3/32 teeth?

EDIT: sorry for replying to your post man

 Fine. Not bad at all.

 Gearing is 32-16 btw

 Awesome and your bike is looking awesome man.

 Thanks, I'm getting used to it already.

 That's good, I'm thinking about getting a Rebate possibly

 It's fine, just getting used to it. I am gonna sell it to Recklessness though.

 32-16

 It can go lighter with a couple things like new tires and tubes, and possibly saddle, but I like the comfort of that one.

 Insanityyyy.

Props

 Thanks.

 Look at my POD.

 does every thing come with it

 Why thank you, please check out how it looks now lol.

 Don't want a bmx, thanks though.